Combination ruler and calculator



FIG. 1 is a perspective view of a combination ruler and calculator showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken line showing of written indicia is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a combination ruler and calculator, as shown and described. 